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Tidy logging and lose stdout hacks for _info.

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This commit is contained in:
Nicholas Marriott
2008-08-08 17:35:42 +00:00
parent de0e1c6284
commit 8ed403e309
3 changed files with 90 additions and 67 deletions
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138
log.c
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@ -1,4 +1,4 @@
/* $Id: log.c,v 1.4 2007-10-19 22:17:29 nicm Exp $ */
/* $Id: log.c,v 1.5 2008-08-08 17:35:42 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@ -23,79 +23,110 @@
#include <stdlib.h>
#include <string.h>
#include <syslog.h>
#include <time.h>
#include "tmux.h"
/* Logging enabled. */
int log_enabled;
/* Logging type. */
#define LOG_TYPE_OFF 0
#define LOG_TYPE_SYSLOG 1
#define LOG_TYPE_TTY 2
#define LOG_TYPE_FILE 3
int log_type = LOG_TYPE_OFF;
/* Log stream or NULL to use syslog. */
FILE *log_stream;
/* Log file, if needed. */
FILE *log_file;
/* Debug level. */
int log_level;
int log_level;
/* Open logging. */
/* Open logging to syslog. */
void
log_open(FILE *f, int facility, int level)
log_open_syslog(int level)
{
log_stream = f;
if (f != NULL)
setlinebuf(f);
log_type = LOG_TYPE_SYSLOG;
log_level = level;
if (f == NULL)
openlog(__progname, LOG_PID|LOG_NDELAY, facility);
tzset();
openlog(__progname, LOG_PID|LOG_NDELAY, LOG_FACILITY);
log_enabled = 1;
tzset();
}
/* Open logging to tty. */
void
log_open_tty(int level)
{
log_type = LOG_TYPE_TTY;
log_level = level;
setlinebuf(stderr);
setlinebuf(stdout);
tzset();
}
/* Open logging to tty. */
void
log_open_file(int level, const char *path)
{
log_file = fopen(path, "w");
if (log_file == NULL)
return;
log_type = LOG_TYPE_FILE;
log_level = level;
setlinebuf(log_file);
tzset();
}
/* Close logging. */
void
log_close(void)
{
if (log_stream != NULL && log_stream != stderr) /* XXX */
fclose(log_stream);
if (log_type == LOG_TYPE_FILE)
fclose(log_file);
log_enabled = 0;
log_type = LOG_TYPE_OFF;
}
/* Write a log message. */
void
log_write(FILE *f, int priority, const char *msg, ...)
log_write(int pri, const char *msg, ...)
{
va_list ap;
va_start(ap, msg);
log_vwrite(f, priority, msg, ap);
log_vwrite(pri, msg, ap);
va_end(ap);
}
/* Write a log message. */
void
log_vwrite(FILE *f, int priority, const char *msg, va_list ap)
log_vwrite(int pri, const char *msg, va_list ap)
{
char *fmt;
FILE *f = log_file;
if (!log_enabled)
return;
if (f == NULL)
f = log_stream;
if (f == NULL) {
vsyslog(priority, msg, ap);
return;
switch (log_type) {
case LOG_TYPE_SYSLOG:
vsyslog(pri, msg, ap);
break;
case LOG_TYPE_TTY:
if (pri == LOG_INFO)
f = stdout;
else
f = stderr;
/* FALLTHROUGH */
case LOG_TYPE_FILE:
if (asprintf(&fmt, "%s\n", msg) == -1)
exit(1);
if (vfprintf(f, fmt, ap) == -1)
exit(1);
fflush(f);
free(fmt);
break;
}
if (asprintf(&fmt, "%s\n", msg) == -1)
exit(1);
if (vfprintf(f, fmt, ap) == -1)
exit(1);
fflush(f);
free(fmt);
}
/* Log a warning with error string. */
@ -105,13 +136,10 @@ log_warn(const char *msg, ...)
va_list ap;
char *fmt;
if (!log_enabled)
return;
va_start(ap, msg);
if (asprintf(&fmt, "%s: %s", msg, strerror(errno)) == -1)
exit(1);
log_vwrite(NULL, LOG_CRIT, fmt, ap);
log_vwrite(LOG_CRIT, fmt, ap);
free(fmt);
va_end(ap);
}
@ -123,7 +151,7 @@ log_warnx(const char *msg, ...)
va_list ap;
va_start(ap, msg);
log_vwrite(NULL, LOG_CRIT, msg, ap);
log_vwrite(LOG_CRIT, msg, ap);
va_end(ap);
}
@ -135,10 +163,7 @@ log_info(const char *msg, ...)
if (log_level > -1) {
va_start(ap, msg);
if (log_stream == stderr) /* XXX */
log_vwrite(stdout, LOG_INFO, msg, ap);
else
log_vwrite(NULL, LOG_INFO, msg, ap);
log_vwrite(LOG_INFO, msg, ap);
va_end(ap);
}
}
@ -151,7 +176,7 @@ log_debug(const char *msg, ...)
if (log_level > 0) {
va_start(ap, msg);
log_vwrite(NULL, LOG_DEBUG, msg, ap);
log_vwrite(LOG_DEBUG, msg, ap);
va_end(ap);
}
}
@ -164,7 +189,7 @@ log_debug2(const char *msg, ...)
if (log_level > 1) {
va_start(ap, msg);
log_vwrite(NULL, LOG_DEBUG, msg, ap);
log_vwrite(LOG_DEBUG, msg, ap);
va_end(ap);
}
}
@ -177,7 +202,7 @@ log_debug3(const char *msg, ...)
if (log_level > 2) {
va_start(ap, msg);
log_vwrite(NULL, LOG_DEBUG, msg, ap);
log_vwrite(LOG_DEBUG, msg, ap);
va_end(ap);
}
}
@ -188,17 +213,14 @@ log_vfatal(const char *msg, va_list ap)
{
char *fmt;
if (!log_enabled)
exit(1);
if (errno != 0) {
if (asprintf(&fmt, "fatal: %s: %s", msg, strerror(errno)) == -1)
exit(1);
log_vwrite(NULL, LOG_CRIT, fmt, ap);
log_vwrite(LOG_CRIT, fmt, ap);
} else {
if (asprintf(&fmt, "fatal: %s", msg) == -1)
exit(1);
log_vwrite(NULL, LOG_CRIT, fmt, ap);
exit(1);
log_vwrite(LOG_CRIT, fmt, ap);
}
free(fmt);
@ -206,7 +228,7 @@ log_vfatal(const char *msg, va_list ap)
}
/* Log a critical error, with error string, and die. */
__dead void
__dead void printflike1
log_fatal(const char *msg, ...)
{
va_list ap;
@ -216,7 +238,7 @@ log_fatal(const char *msg, ...)
}
/* Log a critical error and die. */
__dead void
__dead void printflike1
log_fatalx(const char *msg, ...)
{
va_list ap;